Título: Determination of copper in water
Descripción: El video presenta la metodología para la determinación de cobre presente en aguas realizada en el laboratorio Soriano Soto, MD. (2016). Determination of copper in water. hdl.handle.net/...
Descripción automática: In this video, a practical chemistry lesson is conducted with the objective of determining the presence of copper in a water sample. The lesson covers several sections including objective, interaction, materials and reactants, methodology, and results.
The method involves the reaction of copper with an excess of iodide in an acetic acid medium to form a white precipitate of copper(I) iodide, which is insoluble. The determination uses sodium dithionite as a reducing agent and thiosulfate solution as an indicator.
The required materials include a burette stand, clamps, an automatic burette, distilled water, a water sample for testing, and a series of chemicals such as sodium dithionite, ammonium hydroxide, acetic acid, and potassium iodide solution.
The methodology described involves taking water samples, adding reagents such as ammonium hydroxide and potassium iodide, and then titrating with the sodium dithionite solution until a change in color indicates the endpoint.
The final results are presented as the concentration of copper in the water sample, calculated by the amount of sodium dithionite spent during the titration, a factor and normality, and then adjusted to grams per liter.
Autor/a: Soriano Soto Mª Desamparados
Universitat Politècnica de València UPV: www.upv.es
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#Determinación analítica #Cobre #Aguas de riego #PRODUCCION VEGETAL #3103 - Agronomía
9 окт 2024
